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Bike M-Check

29/10/2019

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Picture
M-Check
One method of checking that your bike is safe and ready for a race is an 'M-check'. 
So called because it forms the shape of an M, starting at the front hub, travelling up to the handlebars, down to the bottom bracket, up to the saddle and back down to the rear hub.

The list below will help you identify what to look for when preforming the M-check.

1, Front Wheel:
  • Axle nuts/quick release – make sure these are tight & firmly closed.
  • Spokes all present and tight.
  • The brakes are secure and working, they are aligned and not rubbing against tyres.
  • Lights & reflectors – if fitted, are tight and working.
  • The tyre hasn't got any splits, cuts and is not worn.
  • The tyre is inflated to the correct pressure.
  • Grip the rim of the wheel and rock back and forth to feel for any loose bearings.
  • Spin the wheel to check for tight bearings and poor alignment or buckles.
2. Handlebars:
  • Ensure the headset and handlebars are tight with no side-side play.
  • Check the brakes levers & gear shifters are working correctly.
  • Make sure you have bar end stops on both ends of the bar.
3. Chain Ring:
  • Ensure the front derailleur is working correctly with smooth changes and that there are no frayed wire ends.
  • The crank spins freely, with no side-side play.
  • The pedals are fitted correctly, and free from debris.
  • The cleats, where used, are clean and not worn.
  • The chain is oiled and not rusty.
4. Saddle:
  • Is facing in the correct direction.
  • Is set at the correct angle.
  • Is free from rust, damage, cracks.
  • Is tightly secured to the seat post clamp.
5. Rear Wheel:
  • As per front wheel +
  • Ensure the rear derailleur is working correctly with smooth changes.
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    Author

    Paul Murray
    ​2016 East Region Triathlon coach of the year

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